Down payment of ten units, how much is the monthly installment?

Starting from Emperor Taizong's Zhenguan period, let's say it's been 1300 years, with 365 days a year, that's a total of 474,500 days. Assuming there are 900 Phantoms, and considering a down payment of 1000 as zero down, it only costs 19 RMB per day! Totally affordable!

Monthly payments of 100, starting from the Xia Dynasty.

Stop it [I want to be alone]